Locomotive-truck.



A. P. BATGHELDER.

LOGOM'OTIVE TRUCK.

APPLICATION FILED JAN. 3. 1013,

Patented Dec. 16, 1913.

I TIE I/JDTNE'SEES JAZYENTUR 55 I? EATEEELIZEH E15 .211" T112 NEIZT To allwlwm it'ntay concern: a

, UNITED "sTiiTn-S PATENT OFFICE.

an r. narcnnrnna, or scnnmacrany, NEW ORK, assrenon To GENERAL ntncrnrc OOMZEANY, A CORPORATION OENEW YORK.

moomorrvn-rnocin Specification of Let ters Patent. Application filed January 3, 1913'. Serial No.

Be. it known that I, ASA F. citizen of the United States, residing at Schenectady, county ,of Schenectady, "State of New York,'-have invented certain new and usefulllmprovements in Locomotive- "Trucks, of whichthe' followingis aspeci'fi-1- My invention relates'to locomotivetrucks and is particularly applicable to trucks of electric-locomotives} "When a locomotive is running on a track atwhiigh speed, there is a .tendencyfor its 5 to go fir'st to one side Ofthe track he and; 'thentothe' other, settin up anoscillation in the locomotive whic tends to de-' liver hlows'to the track. Steam locomotives as' usually' constructed have a high center of gravity, that is, the center of gravity of,

the sprmg supportedparts of the locomotive isvlocated about three feet above the hubs or thegwheels'. When the' fla'ngesof the j wheels of such a 'steam' locomotive strike the rails, the-pointof impact of the springsupp lorted mass is at'the hubs ofthe wheels or t we feet below the 'center'of gravity of the mass, and therefore, this mass has a tendencyto roll over. or to oscillate: about this point and thus lessen the blows of its wheels on the track; or, in'other words, the

locomotive distributes its blows on the track over a longer stretch oi? track. Electric locomotives as usually. constructed, however, have a low centerof gravity and my .fstru'ction ofa locomotive truck. whereby the same rolling efi'ect-can be obtained in a: locomotivehaving a low center of gravity, as in a steam locomotive having-a high cen- 40 p it particularity in the claims annexed to and invention has for its object a novel con- .ter :of gravity, and in which'the point of impactpf the spring supported mass vofthe locomotive when it oscillates is considerably below thev center of gravitybf this mass." To this end, I spring supplo'rt the parts of. the locomotive on which 1;

also privot these parts'thereon about an axis disposed longitudinally-of the truck.

Other features of novelty which characterize'my invention are pointed out-with forming apart of this specification,

, For a better understanding of my inven- 'tio'n, reference may be had to' the followarma ents,

e plat-- -form is supported on the truck "frame and 'ing description taken in connection with the accompany 111g drawing,'in which "of a truck of an electric locomotive embodyof the truck of Fig. 1.

j Referring-- to the drawing, the truck is shown as provided with two pairs of wheels -1,- the axles 2 of'which are journaled in journal boxes 3. Thesejournal boxes are slidably 1' mounted for a limited vertical movement in ca truck frame 4,in the well known manner. The truck frame is supported 'upon. the journal boxes 3 by a spring system of suspension of any well'known form. I A member 5, on which a platform 6 of a. locomotive is supported, is spring supported on the truck frame and is narrower in its, transverse dimension than the same dimension. of the truck. It is pivoted on the truck frame about an axis disposed longiof the-truck. Preferably this member 5 trio motors,-thearmatures 8 of which surround the axles 2 and are, mechanically teri'of gravity of the member 5 comprising thema'gnet portionsof the motors, together "with the platformor platforms on which the cab is mounted, the cab, and the usual con trol apparatus within .the cab, will be approximately fourjeet abovethe rails, while the axis about which these parts are pivoted above the rails, and therefore the center of gravityvof these spring supported parts will be approximately three feet above theaxis .aboutwhichthey are pivoted. j With this construction ;therefore, the oint-cf impact proximately three feet below the center of gravityjof this mass. r

I'have shown my invention embodied in.a swivel truck in whichthe truck frame 4 is a springtsystem of suspension comprising springs 10, links 11, and an equalizing lever 12,in accordance' with my Patent No. 919,305,1dated April '27, 1909. The motor -"frames ormagnet portions? are spring-supported fromthe end of truck frame 4 and tudinally of the truck whereby this member isadapt'ed to swing or roll transversely on the truck frame will be about ten-inches PatentedDec.16,1913;

Figural is aside view partly in section n'g my invention; and Fig. 2 is an end view comprisesfield or magnet portions 7 of elect;

connected thereto, as by keys 9. The'cenofthe spring supported mass ofthe locov motive "upon it's'oscillation is therefore ap- 1 supporteduponfthe-journal boxes 3, through from transoms 13 extendingacross the middle of the truck frame through aspring system of suspension comprising springs 14 and links 15, as clearly seen in Fig. 2 of the i of the motors are narrower in their transverse dimension than the distance between .the wheels, and by thus pivoting them upon an axis disposed longitudinally of the truck, the cab, platform, control apparatus and the magnet portions of the motors will be cushioned by their rolling or swinging about these trunnions or projections 18..

My invention is particularly applicable to the trucks of a locomotive built in accordance with my Patent No. 1,026,552, dated May 14, 1912, and may be embodied in all of the trucks of such a locomotive. I desire it to be understood, however, that my invention is not limited to the particular construction shown and described, .and I aim in the appended claims to cover all modifications thereof which do not depart from the spirit and scope of my invention.

What I claim as new and desire to secure by Letters Patent'of the United States, is

1. In a locomotive truck, a truck frame, axles, journal boxes for said axles slidably mounted in said truck frame, said truck frame being spring supported on said journal boxes, a platform, a member on which said platform is supported, said member being spring supported'on .said truck frame,

- and means for pivoting said member on said truck frame about an axis disposed longitudinally of'said truck.

2. In a locomotive'truck, a truck frame,

' axles, journal boxes for said axles slidably mounted in said truck frame, said truck frame being spring supported on said journal boxes, a platform, a member on which said platform is supported, said member beber and said truck for pivoting saidmember about an axis disposed longitudinally of said truck.

3. 11 a locomotive truck, a truck frame, axles, journal boxes for said axles slidably mounted in said truck frame, said truck frame being spring supported on said journal boxes, a platform, a member onwhich said platform is supported, said member being spring supported on said truck frame Copies of this patent may be obtained for ing spring supported on said truck frame, I and a pivotal connection between said memand having a projecting portion, and a member projecting from said truck frame 'and engaged by the projecting portion of the first mentioned member for pivoting said first mentioned member about anaxis disposed longitudinally of said truck.

4:. In a locomotive truck, a truck frame,

axles, electric motors comprising armaturessurrounding said axles and field portions,

journal boxes for said axles slidably mounted in said truck frame, a system of spring suspension for supporting said truck frame on said journal boxes, a platform, a member on which said platform is supported comprising said field portions of the motors, a system of'spring suspension for supporting said member on said truck frame, and means for pivoting said member on said truck frame about'an axis disposed longitudinally of said truck.

5. In a locomotive truck, a truck frame, axles, electric motors comprising armatures surrounding said axles and field portions, journal boxes for said axles slidably mounted in said truck frame, a system of spring suspension for supporting said truck frame von said journal boxes,a platform, a member on which said platform is supported coma prising said field portionsof said motors,

a system of spring suspension for support ing said member on said truck frame, and a pivotal connection between said member and said ,trucl; frame for pivoting said member about an axis disposed longitudinally of said truck. 7

6. In a locomotive truck, a truck frame, axles, electric motors comprising armatu-res surrounding said axles and field portions, journal boxes for said axles slidably mounted in said truck frame, a system of spring suspension for supporting said truck frame on said journal boxes, a platform, a. member on which said platform is supported com prising said field portions of said motors, a system of spring suspension for supporting said member on said truck frame, said member having a projecting portion, and a member projecting from said truck frame and engaged by the projecting portion of the first mentioned member for pivot-ing said first mentioned member about an axis disposed longitudinally of said truck.

In witness whereof, I have hereunto set my hand this 2nd day of January, 1913.

ASA F. BATCHELDER.

Witnesses:

BENJAMIN B. HULL MARGARET E. WOOLLEY. 

